javax.swing.plaf.basic
Class BasicMenuUI.MouseInputHandler
- java.lang.Object
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- javax.swing.plaf.basic.BasicMenuUI.MouseInputHandler
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- All Implemented Interfaces:
- MouseListener, MouseMotionListener, EventListener, MouseInputListener
- Enclosing class:
- BasicMenuUI
protected class BasicMenuUI.MouseInputHandler extends Object implements MouseInputListener
Instantiated and used by a menu item to handle the current menu selection from mouse events. A MouseInputHandler processes and forwards all mouse events to a shared instance of the MenuSelectionManager.This class is protected so that it can be subclassed by other look and feels to implement their own mouse handling behavior. All overridden methods should call the parent methods so that the menu selection is correct.
- Since:
- 1.4
- See Also:
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MenuSelectionManager
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Constructor Summary
Constructors Modifier Constructor and Description protectedMouseInputHandler()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method and Description voidmouseClicked(MouseEvent e)Invoked when the mouse button has been clicked (pressed and released) on a component.voidmouseDragged(MouseEvent e)Invoked when a mouse button is pressed on the menu and then dragged.voidmouseEntered(MouseEvent e)Invoked when the cursor enters the menu.voidmouseExited(MouseEvent e)Invoked when the mouse exits a component.voidmouseMoved(MouseEvent e)Invoked when the mouse cursor has been moved onto a component but no buttons have been pushed.voidmousePressed(MouseEvent e)Invoked when the mouse has been clicked on the menu.voidmouseReleased(MouseEvent e)Invoked when the mouse has been released on the menu.
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Method Detail
mouseClicked
public void mouseClicked(MouseEvent e)
Description copied from interface:MouseListenerInvoked when the mouse button has been clicked (pressed and released) on a component.- Specified by:
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mouseClickedin interfaceMouseListener
mousePressed
public void mousePressed(MouseEvent e)
Invoked when the mouse has been clicked on the menu. This method clears or sets the selection path of the MenuSelectionManager.- Specified by:
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mousePressedin interfaceMouseListener - Parameters:
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e- the mouse event
mouseReleased
public void mouseReleased(MouseEvent e)
Invoked when the mouse has been released on the menu. Delegates the mouse event to the MenuSelectionManager.- Specified by:
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mouseReleasedin interfaceMouseListener - Parameters:
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e- the mouse event
mouseEntered
public void mouseEntered(MouseEvent e)
Invoked when the cursor enters the menu. This method sets the selected path for the MenuSelectionManager and handles the case in which a menu item is used to pop up an additional menu, as in a hierarchical menu system.- Specified by:
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mouseEnteredin interfaceMouseListener - Parameters:
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e- the mouse event; not used
mouseExited
public void mouseExited(MouseEvent e)
Description copied from interface:MouseListenerInvoked when the mouse exits a component.- Specified by:
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mouseExitedin interfaceMouseListener
mouseDragged
public void mouseDragged(MouseEvent e)
Invoked when a mouse button is pressed on the menu and then dragged. Delegates the mouse event to the MenuSelectionManager.- Specified by:
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mouseDraggedin interfaceMouseMotionListener - Parameters:
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e- the mouse event - See Also:
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MouseMotionListener.mouseDragged(java.awt.event.MouseEvent)
mouseMoved
public void mouseMoved(MouseEvent e)
Description copied from interface:MouseMotionListenerInvoked when the mouse cursor has been moved onto a component but no buttons have been pushed.- Specified by:
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mouseMovedin interfaceMouseMotionListener
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